The TCICA Test for Distinguishing Aldehydes and Ketones

• Gene A. Hiegel ^[1] ; Christine Juska ^[1] ; Michelle Kim ^[1]
  1. [1] Califonia State University, United States
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 78, Nº 8, 2001, pág. 1105
• Idioma: inglés
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• Resumen

  • Simple aldehydes and ketones can easily be distinguished by their rate of reaction with trichloroisocyanuric acid (TCICA). The test is conducted by adding the unknown to a solution of TCICA in acetonitrile containing hydrochloric acid and methanol and watching for a precipitate to form. Aliphatic aldehydes react rapidly, aromatic aldehydes generally take longer, and ketones do not react within a laboratory period.